By Rick Reeno & Rafael Soto

Los Angeles, California - The weights are in for HBO's doubleheader at the Home Depot Center in Carson, California. IBF/WBO super bantamweight champion Nonito Donaire weighed in at 121.6pounds. Toshiaki Nishioka, who holds the WBC's Diamond title, weighed in at 121.8-pounds.

In the junior welterweight co-feature - Brandon Rios came in at the division limit of 140-pounds and Mike Alvarado weighed in at 139.8-pounds.